Home / 10,172.49-14,036.40-5,696.43

Finding the Fourth Proportional to 10,172.49, 14,036.40 and 5,696.43

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Solution

The fourth proportional to 10,172.49, 14,036.40 and 5,696.43 is: 7,860.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,172.49 : 14,036.40 = 5,696.43 : x
  2. Step 2: Convert to fraction form
    10,172.49/14,036.40 = 5,696.43/x
  3. Step 3: Cross multiply
    10,172.49x = 14,036.40 × 5,696.43
  4. Step 4: Simplify right side
    10,172.49x = 79,957,370.05
  5. Step 5: Solve for x
    x = 79,957,370.05/10,172.49
  6. Step 6: Final answer
    x = 7,860.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.